Kernrechtsfrage
Whether the federal appeal met the reasoning requirements of Art. 42 LTF and was therefore admissible.
Extrahierter Entscheid
The appeal did not explain sufficiently why the cantonal judgment and its detention reasoning violated the law; it was manifestly inadmissible.
Extrahierte Begründung
Under Art. 42(1)-(2) LTF, an appeal must state conclusions, reasons, and evidence and briefly show how the challenged decision infringes the law. The letter failed to satisfy this standard, so summary non-entry under Art. 108(1)(b) LTF was warranted.